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# Triangular Prism in Geometry

A triangular prism is a three-sided polygon with two parallel faces. It is a three-dimensional figure with six faces, eight vertices, and twelve edges. The faces of a triangular prism are rectangles and triangles. The triangle faces are called the lateral faces, and the rectangle faces are called the bases.

## How to Find the Surface Area of a Triangular Prism

To find the surface area of a triangular prism, we need to find the areas of all of the faces and add them together. This sounds like a lot, but it's actually not too bad once you get started.

First, let's find the area of one of the rectangular faces. We can do this by multiplying the length times the width. So if our rectangular face has a length of 6 inches and a width of 4 inches, then the area would be 6 multiplied by 4, or 24 square inches.

Now let's find the area of one of the triangle faces. We can do this by multiplying the base times the height, and then dividing that number by 2. So if our triangle has a base of 6 inches and a height of 4 inches, then we would multiply 6 times 4 to get 24, and then divide that by 2 to get 12 square inches.

Now that we know how to find the areas of each type of face, we can find the total surface area by adding them all together. So if our rectangular face has an area of 24 square inches and our triangle face has an area of 12 square inches, then the total surface area would be 36 square inches.

## Conclusion

The surface area of a triangular prism is found by adding together the areas of all six faces—three rectangles and three triangles. To find the surface area of a rectangle, simply multiply the length times the width. To find the surface area of a triangle, multiply the base times the height and then divide that number by 2. With those two formulas in hand, you'll be able to easily calculate the surface area of any triangular prism!

## FAQ

### What is a triangular prism in geometry?

A triangular prism is a three-sided polygon with two parallel faces. It is a three-dimensional figure with six faces, eight vertices, and twelve edges. The faces of a triangular prism are rectangles and triangles. The triangle faces are called the lateral faces, and the rectangle faces are called the bases.

### What is triangular prism explain with an example?

A triangular prism is a three-sided polygon with two parallel faces. It is a three-dimensional figure with six faces, eight vertices, and twelve edges. The faces of a triangular prism are rectangles and triangles. The triangle faces are called the lateral faces, and the rectangle faces are called the bases. An example of a triangular prism is a triangular-shaped box with six faces.